Scroll-sawing machine



(No Model.)

0. B. VAN GOUGHNET.

SCROLL SAWING MAGHINE.

'No.392,083. Patented 00's. 30, 1888.

UNITED dramas CHARLES E. VAN COUGHNET, OF PAMELIA, NEW YORK.

S C R O L L= SA ING MACHBNIE.

SPECIFICATION forming part of Letters Patent No. 392,083, dated October30, 1888.

Application filed April 20. 1888. Serial No. 271,303.

To all whom it may concern.-

Beit known that I, CHARLES B. VAN (JOUGH- NET, a citizen of the UnitedStates, residing at Pamelia, in the county of Jefferson and State of NewYork, have invented certain new and useful Improvements in Scroll-SawingMachines; and I do declare the following to be'a full, clear, and exactdescription of the inveution,such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters and figures'ofreference marked thereon, which form a part of this specification.

My inventionrelates to reciprocating saws.

The object of my invention is to produce a reciprocating fret-saw withwhich I may also combine a rotating drill.

For the above purposes my invention consists in the followingconstruction and combination of parts, which will first be fully setforth and described, and the'features of novelty therein then pointedout in the claim.

Figure l is a central section and elevation of a device embodying myimprovements, and Fig. 2 represents an end elevation of the fretsaw.Fig. 3 is a detail view of the treadle.

1 represents the standards or frame of the machine.

2 is the saw-table supported upon the front posts, 3.

4 is the foot-treadle pivoted at the rear of the machine at 5 and to thesaw-head at its front end.

6 is a series of holes in the treadle 4, for adjustably pivoting thesaw-head.

7 is the saw-head.

8 8 are two bars rigidly fastened to the head and embracing the mainlever 9, and their lower ends projecting through slots 10 in treadle 4.

11 is a series of holes in which the treadle 4 is pivoted, and 12 aseries of holes in which the main lever 9 is pivoted.

9 is the main oscillating lever pivoted to the arbor 13.

14 is a series of holes in lever 9, whereby it may be adjustablypivoted.

15 is a double shaft having an eccentric con- 50 nection between theparts.

16 are balance-wheels mounted upon shaft 15.

(No model.)

17 are disks mounted on shaft 15, and 18 is an eccentric-pin joining thetwo disks and playing within the slot 19 in lever 9.

20 is the. vibrating lever which carries the upper end of the saw.

21 is the arbor to which it is pivoted, mounted in the rear posts, 22.

23 is a series of holes in which lever 20 is adj ustably hung.

24 is a connecting-rod uniting the rear ends of levers 9 and 20. It isadjustably hung in one of a series of holes in the said levers.

25 is the fret-saw connected to levers 9 and 20 at their front ends andpassing down through a slot in the table 2 through the medium of thesaw-head 7.

26 is a rotating spindle hung in bearings on the front posts, 3. It hasa driving-pinion, 27, from or .over which a driving-belt, 28, may pass,and over the balance-wheels 16 or pulley-faces 29, rigidly attachedthereto upon the sides of said wheels.

The rotating spindle 26 may carry any suitable rotating toolsuch as anemery-wheel, 30, as shown.

The machine may be used either as a drilling, grinding, or a fret-sawingmachine.

Instead of extending the bars 8 downwardly to the treadle 4, I mayprovide a separate linkconnection, 31, uniting the main lever 9 and thetreadle. In fact, I prefer the latter construction.

It will be understood that when the link 31 is used the bars 8 have noconnection with the treadle 4.

In my improved machine, which is operated by foot power, and in whichthe motion of the flywheels is communicated through the main or slottedlever and treadle connected thereto, itis highly desirable, if notessential, that there should be two fly-wheelsone on each side of themain lever-in order to provide a continuous and uniform motion. Inmachines where the power is applied to the fly-wheel shaft and motionimparted to the main or slotted lever thereby such construction is notrequisite or especially desirable.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, 1s

The combination of the reciprocating saw,

I (In,

the main frame, a slotted lever pivoted therein necting the main leverand pivoted treadle, all to and carrying one end of the saw, the doubleor substantially as set forth.

twin driving shafts, rotary disks carried upon In testimony whereof Iaffix my signature in the inner or adjacent ends of the shafts, anecpresence of two Witnesses.

centricpin passing through the slotted lever and secured to and unitingsaid disks. a piv- I CHARLES VAN OOUGHN oted arm carrying the other endof the saw, Witnesses:

and a link connecting the main lever and piv- JOSEPH A. MOCONNELL,

oted arm, a pivoted treadle, and a link eon- FRED S. WATTS.

